SORU: aşağıdaki parçaya göre cevaplayınız
It is pointed out in the passage that the death of a plant in a heat-wave is due to ____ .
Heat-waves, if the temperature is high enough, above 40°0
for instance, lead to wilting, and even death in plant,
because of structural damage to essential proteins. The
problem is that plants react by closing their pores when,
due to a serious heat-wave, they are subjected to water
stress, so shutting down on transpiration and conserving
water. Just as the body would overheat dangerously if it
shut its pores to prevent sweating, so, in a plant, the
shutting of the pores will cause permanent damage, if not
death. Temperatures above -5°0 can damage most plants
if lasting for half an hour or more. High soil temperatures
will also damage roots and prevent nutrient uptake.